they were legal at the time, but have since been banned by the obama administration. walid bin attash's attorney, cheryl bormann, says she's not allowed to talk about the interrogations because they've been classified. was your client water-boarded? >> cheryl bormann: i can't answer that question. a proposed protective order bans me from telling you anything i know about what happened to my client, beginning from the moment of his capture in 2003 until the moment that he landed in guantanamo bay in 2006. >> stahl: so, if you were to tell me that he was subjected to a specific harsh interrogation technique, you would be breaking a law, you would be...? >> bormann: i would be. >> stahl: ...convicted of something? >> bormann: i would be prosecuted and imprisoned for, i believe, up to 30 years. >> david nevin: this is not a system that is set up to deliver justice. >> stahl: david nevin represents khalid sheikh mohammed-- "ksm"-- known as the architect of 9/11. considering that ksm has admitted to the worst terrorist attack on u.s. soil, you would think the case might be